Tensioning means for cloth-winding machines



W. H. JESSUP.

TENSIONING MEANS FOR CLOTH WWDING MACHINES.

' APPLICATION FILED APR. 12, I92].

19% 119M130 Patented. Oct. w, 1922.

patented Uct. ll U l WILLIAM H. JES$UJP,OF MOUNT KISCO, NEW YQRK.

.1111: i c it 'risnsionrne Means roncLo'rH-wrnmive innonrnns.

Application filed April 1-2, 1921. Serial t60,705.

Be it known-that ll, WILLIAM lfdlEssrrr,

acitizen of the United States, and resident of Mount Kisco, in the county of VVestchester and State of New York, have made a certain new and useful Invention in Tensioning Means for Cloth-Winding Machines and I declare the following to be a full, clear, and exact description of the same, such aswill enable others skilled in thefart to which it appertains to make and use the invention, reference being had to theaccomi panying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a diagrammatic view showing the spindle, with the guide and tension devices, of a cloth-winding machine.

Figure 2 is a plan view of the preferred form of tensioning bar.

Figure 3 is a detail fragmentary perspective view of the same.

The invention has relation to tensioning means for use with cloth-winding machmes,

weaving machines, etc, being particularly object of the invention is to provide improved means to keep the cloth, warp or yarn at an even tension during the pro cesses in question.

The invention consists in the novel con struction and combinations of parts, as hereinafter setforth.

In the use of cloth-winding machines it has been found that the cloth will be tightly woundfor six or seven inches at each end usual tensioning of the material.

so that when the roll is cut considerable ravelling will result. There is also much waste at the edges of the roll, due to uneven winding. i d

The present invention is designed to provide improved means to correct these defects by applying a lateral tension to the goods being woundwhich will vary from the center outward, to counteract the uneven lateral displacement above mentioned.

In the accompanymg drawings, illustrating the preferred embodiment of the invention, the numeral 1 designates the spindle of cloth-Winding machine, 2, 2,, the guide rollers and 3, 3, the usual tension rolls of suchmachine. Y

Between the guide rollers and the spindle is secured the improved tensioning device,

consisting of a rigidly mounted bar 4, over which the cloth passes. The bar 4: is so positioned as to deflect the cloth in its passage from the guide rollers to the spindle, causing it to havesubstantial frictional contact with a face 5 of said bar. Diagonal grooves 6 are formed in the face 5, the grooves upon each side of the center extending toward their respective edges, with relation to the direction of movement of the cloth. The projections 7 left between these grooves will thus have diagonal marginal edges along the diagonal groove walls 8 which, in the frictional contact of the cloth moving over the face 5, will deflect the portions contact ing therewith and cause said cloth to be stretched from the center outwardly toward the edges.

An equal degree of deflecting resistance, from the center to the edge, added to the normal lateral pushing tendency, which is most effective at the edges, would result in a roll wound more tightly at the edges than in the center. Therefore the grooves 6 are spaced with decreasing intervals therebetween from the edges to the center, whereby the number of diagonal deflecting walls 8 acting upon a given width of cloth will be greatest at the center, and the action upon this portion of the goods will be increased correspondingly.

Lateral faces 5, 5, of the bar 4 intersect the contact face 5, the grooves 6 of the latter appearing upon these faces as notches 6. The bar 4 is so positioned that the course of the cloth will be deflected atthe' edges formed by the intersection of face 5 with faces 5 and 5". Thus the cloth in approaching the face 5 will have portions thereof pulled into the notches 6 of face 5, while in leaving the face 5 portions will be pulled into the notches 6 of face 5", whereby the entry of the cloth into the grooves 6 and the grip thereon of the walls 8 will be greatly assisted.

, By the use of this device cloth may be rolledand out into Widths or tape rolls of even firmness; ravelling is practically eliminated, and a minimum wastage occurs in trimming the ends of'the original roll; the saving in labor and material being very considerable and the product more satisfactory.

I claim:

1. In combination with a cloth-winding machine having a guide roller and a spindle, a tensioning device comprising a bar provided with a diagonally grooved contact face adapted to tension the cloth laterally and to impart a decreasing tension from the center to the edges thereof, and a lateral face intersecting said contact face and notched by the grooves thereof, said bar being rigidly mounted with the edge formed by the intersectionof said faces in position to deflect said cloth in its passage from said guide roller to said spindle.

2. In combination with a cloth-winding machine having a guide roller and a spindle, a tensioning device comprising a bar provided With a diagonally grooved contact face adapted to tension the cloth laterally and to impart a decreasing tension from the center to the edges thereof, and lateral faces intersecting said contact face and notched by the grooves thereof, said bar being rigidly mounted with the edges formed by the intersection of said faces in position to deflect the cloth in its passage from said guide roller to said contact face and from said contact face to said spindle.

In testimony whereof I ailix my signature in presence of two witnesses.

WM. H. J ESSUP.

Witnesses:

CHARLES H. BANKS, MARGARET VAN DEUSEN. 

